baber/WOPTO huggingface dataset:
Patent CA-2024406-C (CA)
Title: Liquid developing device and storage unit for use therein
Inventor: IEMURA SHIGERU
IPC: G03G15/10
Filed: 1990-08-31
Granted: 1995-12-05
Abstract: In a developing device for electrostatic recording using a liquid developer, a first connector member firmly receive one end of a developer supply pipe and one end of a developer retrieval pipe, and a second connector member is firmly fitted in an opening of a developer storage tank for closing the same and firmly receives one end of pipes which open at opposite end to the inside of the developer storage tank,  The developer storage tank is movable it a direction to fit the first  and second connector members closely to-gether under pressure for interconnecting the pipes retained by the first connector member and the corresponding pipes retained by the second connector member.  With this con-struction the developer storage tank can be replaced with utmost ease.
Patent CA-2025228-C (CA)
Title: Beacon carrier
Inventor: AKERBERG DAG E SON
IPC: H04W48/16
Filed: 1990-09-12
Granted: 1999-11-09
Abstract: In a cellular mobile radio system a method of choosing at a mobile station an appropriate base station and time slot on a time division multiplexed radio channel for the purpose of call set up or handover, wherein each base station transmits in one time slot of a predetermined control radio channel and, at least once during a multiframe, in each communication radio channel time slot used by the base station for calls, roaming signals comprising information on identity of transmitting base station and communication radio channels available at transmitting base station, the mobile scanning the control and communication channels and when desirous of call set up or handover selecting a base station and a time slot on a communication channel, the mobile desirous of call set up or handover transmitting to the choosen base information on mobile identity and the choosen communication channel time slot.
Patent CA-2027016-C (CA)
Title: Process for preparing 2,2-difluoro-1,3-benzodioxole
Inventor: CASADO MICHEL
IPC: C07B61/00
Filed: 1990-10-05
Granted: 2001-05-29
Abstract: New process for the preparation of 2,2-difluoro-1,3-benzodioxole from 2,2-dichloro-1,3-benzodioxole. More precisely, the invention consists of a process for the preparation of 2,2-difluoro-1,3-benzodioxole by reaction of 2,2-dichloro-1,3-benzodioxole with potassium fluoride in the presence of an effective quantity of a potassium, sodium, caesium, rubidium or quaternary ammonium hydrogen fluoride. 2,2-Difluoro-1,3-benzodioxole is an intermediate compound which is used especially for the preparation of products for agricultural chemistry and for the synthesis of pharmaceutical products.
Patent CA-2027517-C (CA)
Inventor: DUBIEF CLAUDE
IPC: C11D3/22
Filed: 1990-10-12
Granted: 2002-12-24
Abstract: Composition for washing keratinous substances, especially the hair and/or skin, which contains in an aqueous medium at least one silicone which is insoluble in this medium, at least one detergent anionic, nonionic or amphoteric surfactant and at least one scleroglucan which has optionally been treated with glyoxal.
Patent CA-2036951-C (CA)
Title: Using a conventional flat drawing or a flat mosaic style paste-up of a design to produce open faced casting molds or vaccuum forming molds
Inventor: NEWTON ERNEST JOHN
IPC: B29C33/42
Filed: 1991-02-22
Granted: 2006-04-04
Abstract: The invention relates to a method of using a flat two dimension drawing or a flat two dimensional mosaic style design and etching the drawing or design into the surface of a photoengraving plate, to a predetermined depth, in a positive or negative aspect; using the photoengraved plate and placing a centrally opened frame onto the surface of the photoengraved plate and casting into the area of the frame a pourable, non-thixotropic, silicone based compound, to produce a flexible membrane; using the membrane in conjunction with cast epoxy, polyester or acrylic based compounds to produce open faced casting molds or vacuum forming molds that reproduce the form and details of the drawing or design in a three dimensional form, in a positive or negative aspect, to be used in the production of massive castings or thin vacuum formed replicas of the drawing or design.
Patent CA-2042618-C (CA)
Title: Suction transfer assembly
Inventor: ROHRBOUGH JOHN
IPC: A61J3/00
Filed: 1991-05-15
Granted: 1994-11-08
Abstract: Suction  transfer  assembly  comprising  a  vial filled with a  liquid and  having  an  open  end,  the  vial being  slidable  longitudinally  relative to  a stopper and the stopper slidably sealing the liquid in the vial in any position of sliding movement, the stopper having fastening means facing the open end; an adapter having a front end, a rear end and a conduit extending therethrough, the rear end having a rearwardly facing hollow needle with a tip defining the rear terminus of the conduit, and counterpart fastening means to fasten the counterpart fastening means to the fastening means on the stopper,  and to penetrate the stopper by the needle for flow connecting the chamber and  conduit,  the  front  end  having  a  forwardly  facing nozzle  defining  the  front  terminus  of  the  conduit,  a probe-openable and self-closing check valve in the conduit adjacent  the  nozzle,  and  a  connector  adapted  to  lock releasably to  a  counterpart  connector  on  a  separate suction  operated  device  having  a  counterpart  nozzle containing  a probe arranged for flow connection with the nozzle and for opening the valve; whereby on fastening the counterpart  fastening  means  to  the  fastening  means  and penetrating the stopper  by  the  needle,  and  locking  the counterpart connector to the connector and flow connecting the counterpart nozzle with  the  nozzle  and  opening  the valve, operation of the device will cause liquid transfer from the vial to the device and simultaneous vial movement relative  to  the  stopper  under  external   atmospheric pressure relative to the amount of liquid transferred.
Patent CA-2045883-C (CA)
Title: Process for the extrusion preparation of actives granules
Inventor: AUTANT PIERRE
IPC: A23K1/00
Filed: 1991-06-27
Granted: 2001-08-07
Abstract: The invention relates to new granules as well as to a process for their preparation, the granules being obtained by extrusion of a mixture containing a fusible binding agent in an amount such that it enables the mixture to pass through a die. The granules obtained are then coated with a polymer which enables them to pass through the rumen without degradation. 
<??>These granules after coating are used in animal feeds for ruminants.
Patent CA-2047107-C (CA)
Title: Colored stretched polyethylene material and process for producing the same
Inventor: IWANAMI YOSHIMU
IPC: B29C55/02
Filed: 1991-07-16
Granted: 1995-05-23
Abstract: The present invention discloses a colored stretched polyethylene material which comprises an ultra-high-molecular-weight polyethylene having an intrinsic viscosity of 5-50 dl/g in decalin at 135°C and 0.001-50 parts by weight, per 100 parts by weight of the polyethylene, of a dye and/or a pigment and which has been stretched at a temperature lower than the melting point of the polyethylene, and a process for producing said polyethylene material. This colored stretched polyethylene material has a tensile modulus of 120 Gpa or more and a tensile strength of 1.5 GPa or more.
Patent CA-2049889-C (CA)
Title: Method and apparatus for storing heat in ice by using refrigerant jet
Inventor: HINO TOSHIYUKI
IPC: F24F5/00
Filed: 1991-08-26
Granted: 1994-05-31
Abstract: The method stores heat in ice by freezing water through its direct contact with a hardly-water-soluble refrigerant; i.e., water is mixed with the refrigerant at a high pressure to produce a liquid mixture while preventing evaporation of the refrigerant, and the liquid mixture is jetted from a nozzle into a space at a lower pressure, whereby the refrig-erant evaporates at the lower pressure and the water in the liquid mixture is frozen into sherbet-like ice and dispersed over a wider area than in the case of non-sherbert-like ice. A device based on the method uses a heat-insulating water tank whose top space above water level therein is kept at a pressure P2 lower than saturation pressure P0 (P2<P0) of the refrigerant for water freezing point 0°C.  A mixer mixes the refrigerant of liquid phase and water at a pressure P1 which is higher than the saturation pressure P0 of the refrigerant for water freezing point 0°C (P0<P1), so as to produce a liquid mixture without allowing evaporation of the refriger-ant.  A nozzle having an opening in the top space of the water tank jets the thus prepared liquid mixture to the top space at the pressure P2, whereby the refrigerant evaporates so as to freeze the water of the liquid mixture into sherbet-like ice.
Patent CA-2050996-C (CA)
Title: Acoustic system with transducer and venturi
Inventor: ERIKSSON LARRY J
IPC: F01N1/06
Filed: 1991-09-09
Granted: 1996-09-03
Abstract: An acoustic system has a chamber (12) having an input (14) for receiving an input acoustic wave and guiding the input acoustic wave along a flowpath (16) to a chamber output (18), an acoustic transducer (20, 22, 24) interacting with the acoustic wave in the chamber (12), and a venturi (30, 32, 34) drawing air into the flowpath (16) to flow to the chamber output (18).  The venturi aspirates internal areas of the chamber to keep the acoustic transducers clean and/or aspirates external air into the chamber past the transducers to cool same.
Patent CA-2054071-C (CA)
Title: Electrically powered hand held hair curling appliance
Inventor: MCDOUGALL GREGORY JOHN
IPC: A45D20/50
Filed: 1991-10-23
Granted: 2002-07-16
Abstract: The invention relates to electrically powered hand held hair curling appliances of the type comprising a barrel (2) for delivering warm air to the hair, the barrel (2) being of adjustable diameter to allow curls of different diameter to be formed. The barrel (2) consists of a number of barrel elements (3) which can be moved radially outwardly or radially inwardly to expand or contract the barrel, the elements (3) overlapping one another when contracted but always allowing unobstructed air flow from the interior of the barrel (2) out through apertures (3d) to the hair.
Patent CA-2058282-C (CA)
Title: Process and an apparatus for removing water from slag
Inventor: MARTIN WALTER JOSEF
IPC: B01D43/00
Filed: 1991-12-20
Granted: 1998-08-25
Abstract: Water is extracted from slag that has been quenched in the water bath of a deslagger and expelled from the water bath by means of a discharge ram through a discharge chute, by causing the discharge chute of the deslagger to vibrate.  A vibration generator, in particular an unbalance-type generator, is attached to the discharge chute for this purpose.
Patent CA-2062439-C (CA)
Title: Roof drain cover
Inventor: SAVOIE MURPHY B
IPC: E04D13/04
Filed: 1992-03-06
Granted: 1998-12-22
Abstract: A  roof drain cover characterized by an  open-end  cage adapted to sit over the top of a roof drain.   The cage has a top face and a peripheral wall.  The top face and the peripheral wall are  provided  with  apertures  for  allowing  water  circulation therethrough.  A pair of leg members which are suspended from the top wall, have 3 portion extending below the cage for penetrating into  the drain.   A pair of bolts are slidingly mounted  through the  peripheral  wall  and  are  coaxially  mounted  in  opposite direction,  each  of said bolts being threadedly engaged  with  a corresponding leg member for pulling apart the leg members in the direction of the peripheral wall.   When the cage is mounted over the drain,  the portions extending below the cage are accordingly adapted  to  abut  against the inner surface  of  the  drain  for frictionally retaining the cage to the drain.
Patent CA-2062720-C (CA)
Inventor: DELOT JOSE
IPC: C25D3/00
Filed: 1990-06-08
Granted: 1999-08-10
Abstract: La présente invention concerne une enceinte étanche utilisable pour recouvrir d'un produit liquide (2) de revêtement des objets (3) continus ou discontinus défilant à travers elle, de manière continue ou intermittente, selon des axes de défilement parallèles décalés par rapport à l'axe central de ladite enceinte, caractérisée en ce qu'elle comprend un corps tubulaire (1) en une matière perméable aux champs magnétiques, et au moins une vanne électromagnétique (6, 7) à chacune de ses extrémités (4, 5), ladite vanne (6, 7) comportant: - au moins un enroulement inducteur polyphasé (11, 14) disposé autour du corps tubulaire (1) pour créer un champ magnétique glissant le long de l'axe longitudinal dudit corps tubulaire (1), ce champ magnétique glissant tendant à repousser le produit liquide (2) de revêtement vers l'intérieur de l'enceinte, - et un noyau magnétique (12, 15) solidaire du corps tubulaire (1) et s'étendant selon son axe, de manière à ménager, entre lui et la paroi interne du corps tubulaire (1), un passage de forme appropriée pour le défilement des objets (3) traversant longitudinalement l'enceinte.
Patent CA-2069257-C (CA)
Title: Method of preparing .alpha.-l-aspartyl-l-phenylalanine methyl ester
Inventor: KISHIMOTO SHINICHI
IPC: C07K5/075
Filed: 1992-05-22
Granted: 2002-10-22
Abstract: An acid addition salt of .alpha.-APM is dissolved or suspended in an aqueous medium at 50°C or lower at a pH of 3 or less and a concentration of the salt of 3 wt.% or more. A liquid having a pH of 3 or more and containing or not containing .alpha.-APM is prepared and gradually mixed with solution A with stirring. The temperature of the liquid mixture is kept to be 40°C or lower and the pH value of the mixture is kept at 3 or more, optionally adding a base thereto, whereby crystals of .alpha.-APM are precipitated out.
Patent CA-2076181-C (CA)
Title: Enclosure for an electrical terminal block including barrier means for a cable entry opening
Inventor: RODRIGUES JULIO F
IPC: H02G15/013
Filed: 1992-08-14
Granted: 1996-06-18
Abstract: An enclosure for an electrical terminal block includes a housing having a back wall and projecting side walls extending thereabout to form a bounded chamber.  One side  wall  includes  an opening  formed  therethrough  for permitting passage of an electrical cable into the bounded chamber.   A barrier member is supported by the side wall adjacent the opening.  The barrier member includes a barrier wall at least partially surrounding the opening about a periphery thereof.  The barrier member includes a pair of elongate oppositely directed deflectable fingers projecting inwardly from the barrier wall.  Distal ends of the fingers include slitted portions thereat for engaging and deforming around the electrical cable upon passage thereof through said opening in the side wall.
Patent CA-2079990-C (CA)
Title: Peroxide-substituted polysilazanes
Inventor: SCHWARK JOANNE M
IPC: C04B35/589
Filed: 1992-10-06
Granted: 2003-12-09
Abstract: The preparation of an uncrosslinked polysilazane containing chemically bound peroxide groups by reacting a polysilazane and a hydroperoxide at a temperature below the decomposition temperature of the hydroperoxide is disclosed.      A thermoset polymer is formed by heating a peroxide-substituted silazane that is also substituted by alkenyl groups or alkynyl groups. The chemically bound peroxide decomposes to yield a free radical, thereby initiating crosslinking of the unsaturated groups. The peroxide-substituted polysilazanes can be pyrolyzed to form ceramic articles.
Patent CA-2082841-C (CA)
Title: Cell exchanging apparatus
Inventor: TSUZUKI MUNENORI
IPC: H04L47/22
Filed: 1992-11-13
Granted: 1999-02-23
Abstract: An ATM cell exchanging apparatus includes an ATM cell switch for a first system #1 and an ATM cell switch for a second system.  These cell switches distribute input cells to appropriate output lines.  The system also includes selectors for switching the ATM cell switches in accordance with a selection signal that is output from an external system.  The ATM switches output an idle cell when there is no cell to be output.  When the selector judges that it is necessary to switch the systems as indicated by the change-over signal, the selector switches the system after it confirms that an idle cell is output from both ATM cell switches.  The idle cell that is output indicates that there is no cell stored in either system; thus, it is easy to switch the systems without causing the duplication or omission of a cell.
Patent CA-2084183-C (CA)
Title: Electrochemical processing of aqueous solutions
Inventor: COWLEY GERALD
IPC: H01M8/0656
Filed: 1991-05-23
Granted: 2003-07-29
Abstract: The formation of sodium sulfate by-product in sulfuric acid-based chlorine dioxide generating processes is decreased and preferably eliminated entirely, by effecting electrochemical treatment of sodium ion-containing feed materials for the generator to remove sodium ions and to add hydrogen ions. Sodium hydroxide may be produced as a by-product. The process is generally applicable to the electrochemical treatment of alkali metal chlorates, alkali metal sulfates and mixtures thereof to produce acidified solutions useful in providing chlorate ion-containing feeds to such chlorine dioxide generating processes or for other purposes.
Patent CA-2085424-C (CA)
Title: Process and apparatus for the production of sulphuric acid and alkali metal hydroxide
Inventor: SUNDBLAD BIRGITTA
IPC: C25B1/22
Filed: 1992-12-15
Granted: 1998-11-03
Abstract: The present  invention relates  to an electrochemical process for the production  of  sulphuric  acid  and alkali metal hydroxide,  from an aqueous anolyte containing alkali metal sulphate.  According  to  the  invention, crystalline alkali metal  sulphate is added to the anolyte, whereby the concentration of water can  be  maintained  below  about 55 percent  by  weight.  In  the  electrolysis, the anolyte is brought to an electrochemical  cell with  a cation exchange membrane. In the cell, sulphuric acid and oxygen are formed in the anode compartment  and  alkali  metal  hydroxide and hydrogen  in  the  cathode  compartment. The steps normally preceding the electrolysis, i.e.  dissolution and purification of  the sulphate can be disposed of, since the process is less sensitive to impurities than  the processes  of the prior art. The present invention also relates to an apparatus for the production of sulphuric  acid and  alkali metal hydroxide according to the invention.
Patent CA-2087002-C (CA)
Title: Process for manufacturing multisequence star or network polycondensates by di- or multi-aldehyde coupling, and polycondensates obtained
Inventor: GNANOU YVES
IPC: C08G2/38
Filed: 1993-01-08
Granted: 1997-04-22
Abstract: The invention relates to a process for coupling a living polymer  containing  living terminal  (meth)acrylic units comprising the steps of (i) anionic polymerisation using  an  initiator  system  consisting  of  a  functional initiator and a ligand in order to obtain a living polymer containing living terminal (meth)acrylics units;  (ii) the reaction with an aldehyde compound of formula:  R-(CHO)r in which r  2; R is an alkyl, cycloalkyl, aryl, aralkyl group containing from 2 to 24 carbon atoms,  unsubstituted or substituted by one or several substituents selected from the group comprising:   C1-6 alkyl, C1-6 alkoxy or di(C1-6alkyl) amino, halogen, trifluoromethyl; and (iii) recovering the final polycondensate by means known per se.  The invention also relates to polycondensates thus obtained.
Patent CA-2092327-C (CA)
Title: Handrail for escalators and moving walkways with improved dimensional stability
Inventor: BALL RONALD H
IPC: B66B23/24
Filed: 1993-03-24
Granted: 1996-02-20
Abstract: An improved handrail construction is provided. Normal handrail for use on escalators moving walkways and the like have a C-shaped cross-section with a stretch inhibitor extending longitudinally of the handrail to maintain dimensional stability of the handrail during use. Multiple plies of reinforcing fabric are also located in the handrail where both the stretch inhibitor and multiple plies are molded in a rubber composition to provide the completed handrail. The improvement which provides increased lateral stiffness, dimensional stability and greater lip strength, comprises two spaced apart pliesof reinforcing woven fabric orientated to have stiff principal yarns extending perpendicular to the stretch inhibitor. The two spaced apart plies are interconnected by a rubber composition which has a higher strength in terms of stiffness, hardness and viscosity than the normal rubber composition used to encase the fabric plies and stretch inhibitors. The two spaced apart plies with the transversely extending principal yarns, as interconnected by the tougher rubber composition, forms a structural sandwich construction to provide the improved structural properties of the handrail.
Patent CA-2093028-C (CA)
Title: Printing machine system, especially for printing on a web of heavy or thick stock materials, with interchangeable printing cylinder
Inventor: LEITCH DAVID J
IPC: B41F13/20
Filed: 1993-03-31
Granted: 1998-10-13
Abstract: To permit ready exchange of plate cylinder (13) - blanket cylinder (12) printing couples of different circumferences in a printing machine, the blanket cylinder - plate cylinder printing couple is retained in a cassette (8), with adjustment elements (282, 281, 26) to control the throw-off position of the blanket cylinder in the cassette.  The adjustment elements are selectively engageable or disengageable against matching adjustment elements (284, 283) in the printing tower (9).  The printing tower adjustably supports an impression cylinder (11) located above the blanket cylinder, when the cassette is installed in the tower, so that printing will be from below.  Ink application rollers (361, 362, 363) are force-biassed against the respective plate cylinders, and movable in a slide path which is radial with respect to the plate cylinder of the respective diameter, under control of slide feelers (161, 162, 163) engaging a stationary ring (213) in the cassette concentric with the plate cylinder. The impression setting of the impression cylinder (11) is determined by a bearer ring setting element (29) on the cassette, engaged by a support arm (22) for the impression cylinder. The cassette is removable in a removal path (15b) which has an upward movement component, so that it can be picked up by a hoist (17), after removing the web from between the impression cylinder (11) and the blanket cylinder (12), which is below the impression cylinder, and after swinging the impression cylinder out-of-alignment with the cylinders in the cassette.
Patent CA-2093806-C (CA)
Title: Method of treating or preventing type 1 diabetes by oral administration of insulin
Inventor: WEINER HOWARD L
IPC: A61K38/095
Filed: 1991-10-10
Granted: 2003-12-30
Abstract: Disclosed herein are methods for treating or preventing a disease in mammals having the characteristics of Type I diabetes comprising administering insulin or disease suppressive fragments of insulin or analogs thereof in oral or aerosol dosage forms to said mammals. Also disclosed herein are pharmaceutical formulation or dosage forms for use in the methods.
Patent CA-2096175-C (CA)
Title: Wastewater treatment method and apparatus
Inventor: JOWETT E CRAIG
IPC: C02F3/04
Filed: 1993-05-13
Granted: 1999-05-11
Abstract: A water treatment system is described, for use with potent wastewaters such as septic tank effluent, the system including single-pass aerobic filtration in a small contained transportable volume, using a special water-absorbent and air-permeable filter medium such as polyurethane foam particles, and including optional ensuing water-saturated treatment for removal of additional undesirable constituents before discharging to the environment.  The high-rate aerobic biofilter has low maintenance requirements, is independent of soil and drainage conditions, and can be pre-manufactured for predictable performance.